111423533540 has 48 divisors (see below), whose sum is σ = 255812739840. Its totient is φ = 40430100480.

The previous prime is 111423533509. The next prime is 111423533549. The reversal of 111423533540 is 45335324111.

It is a junction number, because it is equal to n+sod(n) for n = 111423533497 and 111423533506.

It is not an unprimeable number, because it can be changed into a prime (111423533549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445085 + ... + 648804.

It is an arithmetic number, because the mean of its divisors is an integer number (5329432080).

Almost surely, 2^111423533540 is an apocalyptic number.

111423533540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111423533540 is an abundant number, since it is smaller than the sum of its proper divisors (144389206300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111423533540 is a wasteful number, since it uses less digits than its factorization.

111423533540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094372 (or 1094370 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 111423533540 its reverse (45335324111), we get a palindrome (156758857651).

The spelling of 111423533540 in words is "one hundred eleven billion, four hundred twenty-three million, five hundred thirty-three thousand, five hundred forty".